Mrs. Grundy writes: When creative professionals want to visualize colors in three dimensions, they often use dedicated and sometimes expensive software. Photographer Mark Meyer shows how, with the help of its Python scripting interface, you can create graphics of color models in Blender, which is free, open-source, and much more flexible than software dedicated to specifically to graphing color. He demonstrates plotting in XYZ, LAB, and xyY space, and also includes the Blender file to show how it's done.Link to Original Source